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NTL Home / Frequently Asked Questions

Tire Quality Grading System

Categories: (Safety and Security | Vehicles and Equipment)

Background information on the Uniform Tire Quality Grading System (UTQGS) can be found at:
http://www.safercars.gov/Tires

For grading standards, please see:
http://www.nhtsa.dot.gov/cars/rules/regrev/evaluate/807805.html

Information about the codes that appear on passenger vehicle tires as well as other useful information can be found in the National Highway Traffic Safety Administration (NHTSA) brochure, "Tire Safety, Everything Rides On It.": http://www.nhtsa.dot.gov/cars/rules/TireSafety/ridesonit/brochure.html

For additional information, please contact the NHTSA Office of Vehicle Safety Compliance by calling (202) 366-5291.



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